NDLI: Effect of temperature on crack initiation in gas formed structures

Content Provider	Springer Nature Link
Author	Gohari, S. Sharifi, S. Sharifishourabi, G. Vrcelj, Z. Abadi, R.
Copyright Year	2013
Abstract	In the gas forming process, the work piece is formed by applying gas pressure. However, the gas pressure and the accompanying gas temperature can result in crack initiation and unstable crack growth. Thus, it is vital to determine the critical values of applied gas pressure and temperature to avoid crack and fracture failure. We studied the mechanism of fracture using an experimental approach and finite element simulations of a perfect aluminum sheet containing no inclusions and voids. The definition of crack was based on ductile damage mechanics. For inspection of initiation of crack and rupture in gas-metal forming, the ABAQUS/EXPLICIT simulation was used. In gas forming, the applied load is the pressure applied rather than the punching force. The results obtained from both the experimental approach and finite element simulations were compared. The effects of various parameters, such as temperature and gas pressure value on crack initiation, were taken into account.
Starting Page	3745
Ending Page	3754
Page Count	10
File Format	PDF
ISSN	1738494X
Journal	Journal of Mechanical Science and Technology
Volume Number	27
Issue Number	12
e-ISSN	19763824
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-12-28
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Crack initiation Gas-forming process Damage mechanics Ductile damage Finite element simulation Experimental approach Mechanical Engineering Vibration, Dynamical Systems, Control Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering

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